licht.wissen No. 09 “Refurbishment in Trade, Commerce and Administration“

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licht.wissen 09Refurbishment in Trade, Commerce and AdministrationLighting solutions for optimal efficiencyLow energy consumption is one of a lighting installation’s quality features. Efficient lighting technologyand intelligent utilisation of daylight are good for the environment, lower operating costs and help make forbusiness success.Climate change and scarce resources areforcing us to re-think the way we live. Andaction is being taken at political level: targetsand the line of approach are set out inthe German Energy Saving Ordinance(EnEV) and the EU Ecodesign Directive forenergy-related products, which is transposedinto German law as the Energy-Using Products Act (EBPG).Another force for change is the relentlessrise of energy prices. Inefficient productsare thus gradually disappearing from themarket.EnEV 2014:Even more efficient buildingsLow and ultra-low energy buildings willsoon be the norm. In 2009, the EU tightenedup the building directive approved in2007; the next stage followed in 2014.Member states are now required to transposethe latest update into national law. InGermany, that step was taken in May 2014,when a new Energy Saving Ordinance(EnEV) came into force.From now on, the overall energy performanceof buildings needs to meet even moreexacting standards. And energy certificatesare required for more than just non-residentialbuildings with a floor area in excess of1,000 square metres. The size threshold islowered to 500 square metres and buildingswith a high volume of public traffic areincluded. Hotels, cinemas and small companypremises thus also require an energycertificate. So lighting is under scrutiny.EnEV requires the owner of a building toestablish the building’s total energy consumption:before a building is refurbishedor constructed, the primary energy demandfor lighting needs to be calculated in accor-[08] The refurbishment of an old lighting installationmakes for significantly more lightingcomfort and saves a great deal of energy.The greatest efficiency is guaranteed by lightingmanagement systems with presencecontrol and daylight regulation.[09] Daylight-dependent lighting controlsaves energy: the artificial lighting is automaticallyswitched and dimmed as required.Sensors at windows and in the room ascertainthe current lighting level and send signalsto regulate the artificial lighting as required.[10] Different lighting scenes can be easilyaccessed from a display panel.[11] Energy-saving room lighting: Sensorsmeasure the available daylight and regulatethe light required in the room. Because theroom in this example is sufficiently floodedwith daylight, the luminaires at the windoware deactivated and those in the middle ofthe room dimmed. Only the luminaires in thedeeper part of the room are operating at fullcapacity.08Savings potenzial of interior lighting0% 50% Energy consumption 100%Old installation, 1970s, with 38 mm dia. standard fluorescent lamp and MB,old luminaire with opal enclosureOld installation, 1980s, with 26 mm dia. three-band fluorescentlamp and LLB, old luminaire with white louver unitNew installation, modern16 mm dia. fluorescent lamp*Modern LED luminaireWith daylightregulationWith presencecontrol+daylightregulation75%80%65%55%100% energy saving 50% 0%* Fluorescent lamp operated by EB with very low power loss, energy-efficientdirect or direct/indirect luminaires with modern optical control technology20%© © licht.de10
sensor1st row of luminaires2nd row of luminairessensordaylight and artificial lightLight measurementLight measurementdaylight09© licht.dedance with DIN V 18599, Part 4 andapproved before any construction workcommences.Lighting management is the key togreater efficiencyMany old lighting installations will no longersatisfy the new requirements. This is amajor source of potential savings: the olderan installation is, the greater the savingspossible (see chart on page 10).Intelligently designed lighting conceptsenhance both lighting quality and energyefficiency. The following are factors forsuccess:Quality luminaires with high light outputratios and optimised optical control,efficient light sources with high luminousefficacy ratings, such as LEDs,modern electronic operating devices andcontrol gear,lighting concepts with different switchinggroups that can be individually and separatelydimmed and controlled,lighting management systems that takeaccount of daylight and whether roomsare occupied.The only way an operator can harness allthe advantages offered by modern lightsources, luminaires and operating devicesis with electronic control. Presence detectors,for instance, ensure that luminaires areautomatically deactivated as long as nolight is needed. Even greater efficiency isachieved by utilising natural daylight: a newlighting system with daylight and presencecontrol saves as much as 80 percent of theenergy and electricity costs generated byan old installation.101111
Page 1 and 2: licht.wissen 09Refurbishment in Tra
Page 3 and 4: EditorialModern lighting technology
Page 5 and 6: licht.wissen 04Licht im Büro, moti
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Page 9: Innovative technology for human nee
Page 13 and 14: Refurbishment optionsThe lighting i
Page 15 and 16: 16 17lamp luminaires, the net lumin
Page 17 and 18: 18As-is analysisDesignFinancingProc
Page 19 and 20: Office lightingFrom phoning to typi
Page 21 and 22: 22 23DALI switch makes for savingsI
Page 23 and 24: Sample solution20.00 m40.00 mOld in
Page 25 and 26: LED lighting techniquesFor warehous
Page 27 and 28: Lighting managementmakes for saving
Page 29 and 30: Shop and salesroom lightingLight is
Page 31 and 32: Sample solution3.50 m4.80 mOld inst
Page 33 and 34: Dynamic lightingFitness rooms are o
Page 35 and 36: Sample solution32.00 m47.70 m Entra
Page 37 and 38: Checklist: Lighting Installation Re
Page 39 and 40: All about light!Impartial informati

licht.wissen No. 09 “Refurbishment in Trade, Commerce and Administration“

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